Jquery select option value null

Get the current value of the first element in the set of matched elements.

When called on an empty collection, it returns undefined. When the first element in the collection is a select-multiple i. As of jQuery 3. For selects, checkboxes and radio buttons, you can use: When this value is sent to the server via XHR, however, carriage returns are preserved or added by browsers which do not include them in the raw value.

A workaround for this issue can be achieved using a valHook as follows:. Get the single value from a single select and an array of values from a multiple select and display their values. Set the value of each element in the set of matched elements.

jQuery $('#id').val() should not return null for a "disabled selected" HTML select option · Issue #20 · tkrotoff/jquery-simplecolorpicker · GitHub

In this case, the input s and the option s having a value that matches one of the elements of the array will be checked or selected while those having a value that doesn't match one of the elements of the array will be unchecked or unselected, depending on the type. Setting values using this method or using the native value property does not cause the dispatch of the change event. For this reason, the relevant event handlers will not be executed.

If you want to execute them, you should call. As of jQuery 1.

This example removes leading and trailing whitespace from the values of text inputs with a "tags" class. Copyright The jQuery Foundation. Download API Documentation Blog Plugins Browser Support.

Get the current value of the first element in the set of matched elements or set the value of every matched element. A workaround for this issue can be achieved using a valHook as follows: Find the value of an input box.

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String or Number or Array. A function returning the value to set. Receives the index position of the element in the set and the old value as arguments. This method is typically used to set the values of form fields. Set the value of an input box. Use the function argument to modify the value of an input box.

jQuery multiselect

Set a single select, a multiple select, checkboxes and a radio button. Ajax Global Ajax Event Handlers Helper Functions Low-Level Interface Shorthand Methods Attributes Callbacks Object Core CSS Data Deferred Object Deprecated Deprecated 1.

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